Requirements Specific To Perforated Cabinets; Cable Management Guidelines - Cisco Nexus 6000 Installation Manual

Cable Management Guidelines

S e n d d o c u m e n t a t i o n c o m m e n t s t o n e x u s 5 k d o c s @ c i s c o . c o m .
•
•
Note

Requirements Specific to Perforated Cabinets

A perforated cabinet is as a cabinet with perforated front and rear doors and solid side walls. In addition
to the requirements listed in the
perforated cabinets must meet the following requirements:
•
•
•
Cisco provides an R-Series rack that conforms to these requirements.
Cable Management Guidelines
To help with cable management, you might want to allow additional space in the rack above and below
the chassis to make it easier to route as many as 56 fiber or copper cables through the rack.
Cisco Nexus 6000 Series Hardware Installation Guide
A-2
The width between the rack-mounting rails must be at least 19 inches if the rear of the switch is not
attached to the rack. For four-post EIA racks, this is the distance between the two front rails.
For four-post EIA cabinets (perforated or solid-walled), the requirements are as follows:
The minimum spacing for the bend radius for fiber-optic cables should have the front-mounting
–
rails of the cabinet offset from the front door by a minimum of 3 inches (7.6 cm), and a
minimum of 5 inches (12.7 cm) if cable management brackets are installed on the front of the
chassis.
The distance between the outside face of the front mounting rail and the outside face of the back
–
mounting rail should be 23.5 to 34.0 inches (59.7 to 86.4 cm) to allow for rear-bracket
installation.
A minimum of 2.5 inches (6.4 cm) of clear space should exist between the side edge of the
–
chassis and the side wall of the cabinet. No sizeable flow obstructions should be immediately
in the way of chassis air intake or exhaust vents.
Optional jumper power cords are available for use in a cabinet. See the
section on page C-8.
The front and rear doors must have at least a 60 percent open area perforation pattern, with at least
15 square inches (96.8 square cm) of open area per rack unit of door height.
The roof should be perforated with at least a 20 percent open area.
The cabinet floor should be open or perforated to enhance cooling
"General Requirements for Cabinets and Racks" section on page
Appendix A Cabinet and Rack Installation
"Jumper Power Cord"
.
OL-15902-02
A-1,